Overview: The host is installed with Thunderbird, which is prone to multiple vulnerabilities.

Vulnerability Insight: - Error in js/src/xpconnect/src/xpcwrappedjsclass.cpp file will allow attacker to execute arbitrary web script. - An error when handling a non-200 response returned by a proxy in reply to a CONNECT request, which could cause the body of the response to be rendered within the context of the request 'Host:' header. - An error when handling event listeners attached to an element whose owner document is null. - Due to content-loading policies not being checked before loading external script files into XUL documents, which could be exploited to bypass restrictions. - An error when handling event listeners attached to an element whose owner document is null. - Error exists in JavaScript engine is caused via vectors related to js_LeaveSharpObject, ParseXMLSource, and a certain assertion in jsinterp.c. - Error exists via vectors involving 'double frame construction.'